Apparent murder-suicide under investigation in Marlborough


Apparent murder-suicide under investigation in Marlborough
The Marlborough Police Department and Middlesex District Attorney’s Office are investigating an apparent murder-suicide. (Photo/Laura Hayes)

UPDATE: The Middlesex County District Attorney’s Office has identified the man and woman.

MARLBOROUGH – An apparent murder-suicide that occurred in Marlborough this morning is under investigation. 

Marlborough Police Chief David Giorgi and Middlesex District Attorney Marian Ryan confirmed the investigation in a press release.

Ryan’s office has identified the two as Kethlen Paula Alves Trindade DaRocha, 28, of Marlborough and Marlon Moreira Costa, 29, of Marlborough.

According to the release, at about 10:05 a.m. Nov. 29, Marlborough police were called to a shooting at a residence on Rice Street. When officers arrived, there were two females and a child outside, and they told police that there was a shooting of a female roommate inside the home.

Police said they located Alves Trindade DaRocha, who lived in the home, and Moreira Costa dead from apparent gunshot wounds inside the residence.

Ryan and Giorgi said the preliminary investigation indicated that the two had been in a relationship. According to police, Moreira Costa had threatened Alves Trindade DaRocha at his home last night. This morning, she returned to her home.

“Shortly before 10:05 a.m. the male came to the female’s home, forcing entry through a window. Once inside the male again threatened the female before shooting her and then himself,” the release said.

According to the release, the investigation is ongoing and is being led by Ryan’s office and State Police detectives assigned to her office along with the Marlborough Police Department.


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